<?php
    include('./dbconn.php');

    $user = $_GET['user'];
    $pw = $_GET['pw'];

    $sql = "select * from login_register where user='$user'";

    $result = $conn->query($sql);
 
    if($result->num_rows > 0){
        $data['code'] = 2;
        $data['msp'] = '用户已存在';
    }else{
        $sql = "insert into login_register (user, pw) values ('$user', '$pw')";
        if($conn->query($sql)){
            $data['code'] = 0;
            $data['msp'] = '注册成功';
        }else{
            $data['code'] = 1;
            $data['msp'] = '注册失败';
        }
    }
    echo json_encode($data);
?>